Portable radiotelephone base station



FIG. 1 is a top side elevational view of a portable radiotelephone base station showing our new design;

FIG. 2 is a front side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear side elevational view thereof;

FIG. 5 is a bottom side elevational view thereof; and,

FIG. 6 is a top, front, and right perspective view thereof. 

The ornamental design for a portable radiotelephone base station, as shown and described. 